[CentOS] Support for add disk SCSI

[Luis campo]

Thanks for your reply, 

 we have the idea of having 4 disk in a RAID-1 this is feasible or that we recommend.

greetings

Luis


> Date: Tue, 8 Sep 2009 14:03:52 -0700
> From: pierce at hogranch.com
> To: centos at centos.org
> Subject: Re: [CentOS] Support for add disk SCSI
> 
> Les Mikesell wrote:
> > Luis campo wrote:
> >   
> >> Thanks for your reply,
> >>
> >> The configuration I mentioned implies that each SCSI disk array would be 
> >> in a new partition?
> >>     
> >
> > Yes, if you want raid1. Other raid levels or LVM could group them into one.
> >   
> 
> some confusion here, perhaps.  I've noticed that many hardware raid 
> controllers use "raid1" to refer to both raid-1 (2 disks mirrored)  and 
> raid-10 (2*N disks mirrored and striped).
> 
> with 4 disks in a single raid, you would actually have a raid-10, which 
> is two mirror sets striped together).   after building the raid in the 
> disk controller (or if its not a hardware controller, building a 
> software raid with mdadm), you would create a new file system on it with 
> mkfs, then mount it as a directory (adding it to /etc/fstab for 
> permanent use) so you could start putting files on it.    I often mount 
> my 'aux' file systems as /u10, /u11, ...
> 
> 
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